Cocondensation resin of formaldehyde, cyclic aminotriazine and isocyanuric acid

ABSTRACT

A colored finely powdered resin composition prepared by cocondensation of cyanuric acid, isocyanuric acid or derivatives thereof with a cyclic aminotriazine and formaldehyde is well tolerable to solvents and particularly suitable for printing ink, textile printing or dip dyeing by pigment and coloring plastics.

United States Patent {72] Inventors Ryoshiro Takano [51] lnt. CI .I C08g 9/30, Kamakura-shi; C08g 51/04 Kunihiko lshii, Kamakura-shi; Suezi Higo, [50] Field of Search 252/3013; Yokosuka-shi, all of Japan 260/37 N, 39 P, 67.6 [2]] Appl. No. 851,448 1 m Filed Aug. 19,1969 1 References Cited [45] Patented Nov. 16, I971 UNITED STATES PATENTS [731 Asslgnee sinlmh' 1 3,303,168 2/1967 Kazenas 260/67.6 1 3,481,903 12/1968 DalellO 260/676 [32] Pnority Aug. 30, 1968 1 33 Japan j Primary Examiner-Morri Liebman 31 43 21 1 Assistant ExaminerR. H. aitlen H. i Attorney-Stevens, Davis, Miller& Mosher [54] ABSTRACT: A colored finely powdered resin composition AC") prepared by cocondensation of cyanuric acid, isocyanuric 16 Claims No Drawin s 1 acid or derivatives thereof with a cyclic amlnotriazme and forg maldehydc is well tolerable to solvents and particularly suita- [52] US. Cl 260/37 N, ble for printing ink, textile printing or dip dyeing by pigment 5 and coloring plastics.

COCONDENSATION RESTN OF FORMALDEHYDE, CYCLlC AMINOTRIAZINE AND ISOCYANURIC ACID This invention relates to a colored finely powdered resin composition.

Heretofore, there have been methods of producing a fluorescent pigment in US. Pat. Nos. 2,809,954, 2,938,873, 3,116,256, and 3,198,741. These pigments are, however, generally badly tolerable to solvents, and it has been difficult to use them for gravure ink such as type-C (Nitro-cellulose Gravure lnk), type-E (Spirit Gravure lnk), type-P (Polyamide Gravure lnk) and type-V (Vinyl Gravure ink) for silk screen ink for vinyl chloride resin. In order to produce a pigment that is well tolerable to solvents in accordance with the abovementioned US. patent, it is necessary to increase the compounding ratio of a cyclic aminotriazine such as melamine or benzoguanamine as compared with the compounding ratio of an aromatic sulfonamide such as toluenesulfonamide. As a result, the produced resin necessarily becomes strong and is hardly pulverized, and so it was difficult to make it fine so as to show good printability. A condensation resin of an aromatic sulfonamide such as toluenesulfonamide with formaldehyde is easily pulverized and is completely intolerably to ketone, ester or alcohol and swells in an aromatic solvent such as toluene. On the other hand, a condensation resin of a cyclic aminotriazine such as melamine or benzoguanamine is well tolerable to solvents, but has so greatly rigid nature that it is impossible to be pulverized.

1n the above-mentioned cocondensation resins, there were inevitable contradiction that good tolerance to solvent makes it difiicult to be pulverized, while the nature of easy pulverizing worsens tolerance to solvents.

An object of the present invention is to provide a wellsolvent-tolerable and easily pulverized colored finely powdered resin composition.

Another object of the present invention is to provide a colored finely powdered resin particularly suitable for printing ink.

The composition of the present invention can be obtained by cocondensation of formaldehyde with a cyclic aminotriazine and a compound selected from the group consisting of cyanuric acid, isocyanuric acid and derivatives thereof followed by coloring with a dye and powdering.

As derivatives of a cyanuric acid and isocyanuric acid, there can be mentioned, for example, triarylisocyanurate, triacetonylisocyanurate, trimethylisocyanurate, tris(2,3-epoxypropyl)isocyanurate, tris(2-carboxymethyl)isocyanurate, tris(2-carboethoxy)isocyanurate etc. As a cyclic aminotriazine, there can be mentioned, for example, melamine, benzoguanamine, acetoguanamine, formoguanamine, propioguanamine, butyroguanamine, phenylacetoguanamine, S-cyano-valeroguanamine, sebacoguanamine, adipoguanamine, -isopropeny1-y-acety1' pimeroguanamine, sym-diphenyladipoguanamine, pthaloguanamine, p,p-bis-2,4-diamino--triadinyldiphenyl, 1,2-bis-2,4-diamino-6-triadinylnaphthalene, and 3,9-bis [2- 3 ,S-diamino-2,4,6-triazaphenyl )ethyl] 2,4,8,10-tetroxaspryro(5,5) undecane etc. As a coloring dye, there can be mentioned, for example, a basic dye such as Rhodamine B, Rhodamine 6GCP, Methyl-Violet FN, Crystal Violet FN or Victoria Blue-PB; and acidic dye, for example, Eosine, Erio Acid Red X13, Brio Acid Red XG, Supracem Violet 4BF or Brilliant Sulpho Flavine FF etc.; dispersion dye such as Celliton Pink FF3B, Celliton Pink 3B etc.; a dye soluble in solvents such as Azosol Brilliant Yellow-6GP, Azosol Fast Blue- GLA or Azosol Fast Blue-HLR; a reactive dye such as Remazol Turquoise Blue-G; fluorescent brightening agents such as Tinopal PGP. Further, as a pigment, there can be used Phthalocyanine Blue and Phthalocyanine Green etc.

The compounding ratio of the cyclic aminotriazine to cyanuric acid, isocyanuric acid or derivatives thereof which satisfies both solvent tolerance and easiness of pulverizing is in the range of 9 molescl mole to 1 mole:9 moles, preferably, however, 7 moles:3 moles to 3 mo1es:7 moles. Over the range of 9 moleszl mole worsens greatly the nature to be pulverized, while under the range of 1 mole:9 moles worsens solvent tolerance greatly.

1n the condensation of cyanuric acid, derivatives thereof, cyclic aminotriazine with formaldehyde, light resistance of the condensation product is improved by the addition of an aromatic sulfonamide. As the aromatic sulfonamide is, for example, p-toluenesulfonamide, o-toluenesulfonamide or a mixture thereof, benzenesulfonamide or tetralinsulfonamide.

The colored fine resin powder of the present invention can be utilized for printing ink, textile printing or dip dyeing of pigment, coloring of plastics and paints.

EXAMPLE 1 A mixture of 645 g. of isocyanuric acid (5 moles), 630 g. of melamine (5 moles) and 2,430 g. of formaline (formaldehyde 37 percent) was stirred on a water bath at C. for 10-15 minutes, whereupon water layer and resin layer was separated to proceed methylol reaction. The water layer was separated, and 16 g. of Rhodamine B and 12 g. of Rhodamine 6GCP were added and the mixture was stirred well. The reaction mixture was put in a drying apparatus at 160 C. for 5 hours to complete the reaction. After cooling, the product was pulverized finely to obtain pink-colored resin powder.

EXAMPLE 2 A mixture of 129 g. of isocyanuric acid (1 mole), 1,197 g. of melamin (9.5 moles) and 2,554 g. of formalin (formaldehyde 37 percent) was stirred on a water bath at 80 C. for 15-20 minutes. whereupon, methylol reaction takes place to separate water layer and resin layer. The water layer was separated, and 16 g. of Rhodamine B and 12 g. of Rhodamine 6GCP were added and the mixture was stirred well. The reaction mixture was put in a drying apparatus at 160 C. for 5 hours to complete the reaction. After cooling, the product was pulverized finely to obtain pink-colored resin powder.

EXAMPLE 3 A mixture of 1,161 g. of isocyanuric acid (9 moles), 126 g. of melamine (1 mole) and 2,430 g. of formalin (formaldehyde 3'! percent) was stirred on a water bath at 80 C. for 30 minutes. whereupon, methylol reaction takes place to separate water layer and resin layer. The water layer was separated, and 16 g. of Rhodamine B and 12 g. of Rhodamine 6GCP were added and the mixture was stirred well. The reaction mixture was put in a drying apparatus at 160 C. for 6 hours to complete the reaction. After cooling, the product was pulverized finally to obtain pink-colored resin powder.

EXAMPLE 4 A mixture of 935 g. of benzoguanamine (5 moles), 645 g. of isocyanuric acid (5 moles) and 2,027 g. of formalin (formaldehyde 37 percent) was stirred on a water bath at 80 C. for 10 minutes. whereupon, methylol reaction takes place to separate water layer and resin layer. The water layer was separated, and 20 g. of Acid Violet 5N and the mixtures was stirred well. The reaction mixture was put in a drying apparatus at 160 C. for 5 hours to complete the reaction. After cooling, the product was pulverized finely to obtain violetcolored resin powder.

EXAMPLE 5 A mixture of 171 g. of p-toluenesulfonamide (1.0 mole) and 37.5 g. of paraformaldehyde (formaldehyde 80 percent) was heated on an oil bath at C. to make a solution. Thereto were added 63 g. of melamine (0.5 mole) and 64.5 g. of isocyanuric acid (0.5 mole) to make a dispersion. Then, 3.5 g. of Rhodamine B and 2.4 g. of Rhodamine 6GCP were added and stirred well. 112.5 g. of paraformaldehyde was added and stirred vigorously to condense under dehydration. The reaction mixture was put in a drying apparatus at C. for 3 hours to complete the reaction. After cooling, the product was .MMMEMQBEQQMJEEQL'EQP PYZE'E Q l l i d to obtain pinhcolored resin powder. powder obtained by example I, 2, 3, 4 and 5 ls not lnterior to the comparison in In the fol g e, the co red resin Powder obtained by gxll'glcznt effect under ultraviJlet light,and cleamess and light resistance under these examples is compared with the bluish red powder obtained by the example 8 in U.S. Pat. No. 2,809,954. 5 we clam" v 1. A colored finely pulverlzed resin composition conslstlng of the condensation product of formaldehyde with a cyclic aminotriazine and isocyanuric acid, or a derivative thereof hours necessary to be diameter of the I i I pulverized) become granule anhe whereln the mol who of cycllc-amlnotrlazlne to lsocyanurlc to granule of the same same pulverizing l acld 15 in range of 9:1 to l:9, preferably 7:3 to 3:7, and a sul'fidiamfl" cient amount ofa dye or pigment to color the resin.

l) 2) 2. A colored finely pulverized resin composition according to claim 1 wherein the condensation product includes an aro- 90 4 micro" matic monosulfonamide.

2 no 5,5 3. A colored finely pulverized resin composition according 3 80 i r to claim 2 wherein the aromatic monosulfonamide is selected 3 Z: i: from the group consisting of ortho-toluenesulfonamide, Compafison to I00 micron paratoluenesulfonamide and mixtures thereof. I I

H 4. A colored finely pulverlzed resln composltlon according Note 1: Hours necessary for pulverizing by high speed hammer mill as deto clalm wherein the dye baslc dyesmff' I termined when comparison is 100. 5. A colored finely pulverlzed resln composltlon accord ng Note 2: Measured by powder specific surface area apparatus of Shimazu t claim 4 whe ein th d i rh d mi Manufacturing Co., Ltd., Japan. It is shown that when the compounding who of 6 A colored finely pulverized resin composition accordin isocyanuric acid and melamine is made 1 mole: 9.5 moles, easiness of pulverizing l g is lowered. to claim 1, whereln the dye ls an acid dyestuff. "The used in the comparison experiment is the powder prepared in 7. A colored finely divided pulverized resin composition ac- -accordance with example 8 of U.S. Pat. No. 2.809.954. The same applied cording to claim 6wherein the dye is acid violet.

hereinafter.

8. A colored finely pulverized resin composition according to claim 1, wherein the dye is azosolbriliant yellow-6GP, (4-

comparison was put in a test tube together with the solvent, 9. A printing composition comprising, as the pigment, a and the state of the powder in the solvent after 24 hours is obcolored finely divided pulverized resin composition-according served and shown in the following table. W w to claim 1.

Example No.

1 2 3 4 6 Comparison Insoluble.

Do. Soluble.

Do. Do. Do. Do. Swells. do. do .-do do o..... Partly swells.

The powder is applied to type V Gravure ink described in v A 10. A colored finely powdered resin composition according the above-mentioned U.S. Pat. No. 2,809,954, and the change ,to clgim wherein the cyclic aminotriazine i5 melamine, of viscosity is measured to observe the stability of the powder m in ink. The result is shown in the following table. t g y p wde r ed s nlfmmposltlon accordlrtg The small increase of the viscosity means that solvent re- 0 mm w e cyc ammomdzme sistance is good. .99 9wl% 12. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is Viscosity measured Viscosity measured after acetoguanamine soon after the 24 hours since admixture W admixture with ink with ink 13. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is Example phthaloguanamine.

l n. assst q 2 l5 seconds 5 16 seconds 4 14. A colored finely powdered resin composition according 3 l5 scwfldfi 8 9 to claim 1 wherein the cyclic aminotriazine is 3,9-bisI2-( 3,5- 4 l6 seconds 2 18 seconds 0 -t 5 5 5 I6 seconds) 4 I IVHSQQLJSLLWM My dlarglno 2,4,6 trlazaphenyl)ethyl]2,4,8,l0 etroxaspyrt l Comparison 28 seconds4 viscosity is greatly 1U." FEE;

increased and shows no fluidity. and the 15. A colored finely powdered resin composition according measuremen to claim 1 wherein the aromatic monosulfonamide is "f benzenesulfonamide. impossible. H mm 16. A colored finely powdered resin composition according Note 1: The composition of the sample used in the above measurement of to claim 2 wherein the aromatic monosulfonamide is tetralinviscosity is composed of vinylite VYHH (Union Carbide Co., Ltd.) 30%, resin lf id powder in comparison or example 30%. methyl ethyl ketone 30 and ethyl acetate l0%. 7' r 

2. A colored finely pulverized resin composition according to claim 1 wherein the condensation product includes an aromatic monosulfonamide.
 3. A colored finely pulverized resin composition according to claim 2 wherein the aromatic monosulfonamide is selected from the group consisting of ortho-toluenesulfonamide, paratoluenesulfonamide and mixtures thereof.
 4. A colored finely pulverized resin composition according to claim 1, wherein the dye is a basic dyestuff.
 5. A colored finely pulverized resin composition according to claim 4 wherein the dye is rhodamine.
 6. A colored finely pulverized resin composition according to claim 1, wherein the dye is an acid dyestuff.
 7. A colored finely divided pulverized resin composition according to claim 6 wherein the dye is acid violet.
 8. A colored finely pulverized resin composition according to claim 1, wherein the dye is azosolbriliant yellow-6GF, (4-amino-1,8-naphthol 2'',4''dimethylphenylimid).
 9. A printing composition comprising, as the pigment, a colored finely divided pulverized resin composition according to claim
 1. 10. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is melamine.
 11. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is benzoguanamine.
 12. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is acetoguanamine.
 13. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is phthaloguanamine.
 14. A colored finely powdered resin composition according to claim 1 wherein the cyclic aminotriazine is 3,9-bis(2-(3,5-diamino-2,4,6-triazaphenyl)ethyl)2,4,8,10-tetroxaspyro(5, 5)undecane.
 15. A colored finely powdered resin composition according to claim 1 wherein the aromatic monosulfonamide is benzenesulfonamide.
 16. A colored finely powdered resin composition according to claim 2 wherein the aromatic monosulfonamide is tetralinsulfonamide. 